Results 31 to 40 of about 8,883 (198)

Enzymatical and microbial degradation of cyclic dipeptides (diketopiperazines) [PDF]

open access: yesAMB Express, 2013
Diketopiperazines (DKPs) are cyclic dipeptides, representing an abundant class of biologically active natural compounds. Despite their widespread occurrence in nature, little is known about their degradation. In this study, the enzymatical and microbial cleavage of DKPs was investigated.
Perzborn, M., Syldatk, C., Rudat, J.
openaire   +4 more sources

Rational and combinatorial tailoring of bioactive cyclic dipeptides [PDF]

open access: yesFrontiers in Microbiology, 2015
Modified cyclic dipeptides represent a diverse family of microbial secondary metabolites. They display a broad variety of biological and pharmacological activities and have long been recognized as privileged structures with the ability to bind to a wide range of receptors.
Tobias Wolfgang Giessen   +2 more
openaire   +5 more sources

Recent research of peptide-based hydrogel in nervous regeneration

open access: yesBioactive Materials
Neurological disorders exert significantly affect the quality of life for patients, necessitating effective strategies for nerve regeneration. Both traditional autologous nerve transplantation and emerging therapeutic approaches encounter scientific ...
Chunmei Xie   +7 more
doaj   +1 more source

Cyclo-(Phe-Tyr) as a novel cyclic dipeptide compound alleviates ischemic/reperfusion brain injury via JUNB/JNK/NF-κB and SOX5/PI3K/AKT pathways

open access: yesPharmacological Research, 2022
Ischemic/reperfusion (IR) can cause adverse reactions including apoptosis, oxidative stress, and inflammation, but the existing therapeutic strategies have been limited.
Jiale Cai   +10 more
doaj   +1 more source

Protein synthesis with conformationally constrained cyclic dipeptides

open access: yesBioorganic & Medicinal Chemistry, 2020
We have synthesized several conformationally constrained dipeptide analogues as possible substrates for incorporation into proteins. These have included three cyclic dipeptides formed from Boc derivatives of 2,4-diaminobutyric acid, ornithine and lysine, having 5-, 6-, and 7-membered lactam rings, respectively.
Chao, Zhang   +3 more
openaire   +3 more sources

Effects of Cyclic High Ambient Temperature on Muscle Imidazole Dipeptide Content in Broiler Chickens

open access: yesThe Journal of Poultry Science
Imidazole dipeptides possess important bioregulatory properties in animals. This study aimed to evaluate the effect of high ambient temperature on muscle imidazole dipeptides (carnosine, anserine, and balenine) in broiler chickens.
Ayumi Katafuchi   +8 more
doaj   +1 more source

A minimalistic hydrolase based on co-assembled cyclic dipeptides [PDF]

open access: yesOrganic & Biomolecular Chemistry, 2019
Cyclic dipeptides based on proteinogenic amino acids form higher aggregates in water with an enzyme-like activity. Are they relevant for abiogenesis?
Alexander Kleinsmann, Boris Nachtsheim
openaire   +2 more sources

Free Energies of Reaction for Aqueous Glycine Condensation Chemistry at Extreme Temperatures

open access: yesGeophysical Monograph Series, Page 271-283., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Matthew Kroonblawd, Nir Goldman
wiley  

+1 more source

Antifungal Nafuredin and Epithiodiketopiperazine Derivatives From the Mangrove-Derived Fungus Trichoderma harzianum D13

open access: yesFrontiers in Microbiology, 2020
A new polyketide derivative, nafuredin C (1), a novel heterocyclic dipeptide, trichodermamide G (3), together with four known biogenetically related compounds nafuredin A (2), trichodermamide A (4), aspergillazin A (5), and peniisocoumarin H (6), were ...
Dong-Lin Zhao   +9 more
doaj   +1 more source

PANoptosis in the pathogenesis of myelodysplastic syndromes

open access: yesMolecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla   +4 more
wiley   +1 more source

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